Shoe-bottom-staining machine



Oct. 20,1925. 1,557,583

A. s. HAYDEN SHOE BOTTOM STAINING MACHINE Filed June 29, 1922 Patented Oct. 20, 1925.

UNITED STATES PATENT OFFICE.)

AMOS s. HAYDEN, on nonnnoon, MASSACHUSETTS, ASSIGNOR r0 UNITED SHOE .MAGHINERY CORPORATION, or rarnnsonnnw a Genres-Arron on NEW JERSEY.

SHOE-BOTTOM-STAINING MACHINE.

Application filed June 29, 1922. Serial No. 571,713.

To all whom it mag concern: j

Be it known that I, Amos S; HAYDEN, a citizen of the United States, residing atl-lolbrook, in the county of Norfolk and State of Massachusetts, have invented certain Improvements in Shoe-Bottom-Staining Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters onthed 'awings indicating like parts in the several figures.

The present invention relates to machines for applying blacking and other stains to thebottom-portions of shoes, and especially to-the edges thereof.

In an apparatus of this character designed for coating shoe-heels, which is the subject of Patent No. 1,025,523, Furber, May 7, 1912, the application of stain to the work is effect-ed by a rotatable brush operating over the sides of the heels, and by a rotatable, frusto-conical member, the edge of which enters the crease and coats the rand. The stain is supplied from a tank to the crease member, andfrom this to the brush by a member in the form of a rotatable disk having at one side, adjacent to the periphcry, a stain-feeding surface co-operating with the crease member. To understand the effect of the present invention, it should be noted that to provide for the correct coating of the heelsurfaces, the amount of stain delivered to the crease member is controlled by a stripper consisting of a steel screw threaded through the casing of the machine,

and having its inner end, which presents a plane surface, in proximity and parallel to the feeding surface of the disk. The closeness with whichthe end of this screw approaches the feeding surface determines the amount of stain carried thereby, and thereforethe delivery to the creasememher and brush. Since it. is desired that there shall always be some feedby th-edisk in the operation of the machine, it is not intended that the screwend shall come in contact with the disk. But because the latter may fail to run true, orfrom too close adjustment by careless operators, the disk, in its rotation, may grind against the screw and wear it. To insure control of the stain over the full width of the feeding surface, the

edge of thescrew-end is made to overhang somewhat the periphery ofthe disk. This end-portion, which is not opposite the feeding surface, does not,-of course, wear with the remainder, and may becomea projection extending outside the edge of the disk.

Then when the operator again turns the screw toward the disk to lessen thef-eed, the projection,revolvingopposite a part of the feeding surface, prevents the stripping action overthe associated worn portion, which may deliver too much stain to theapplying members and produce unsatisfactory results.

Correction ofthis defect has involved a been the custom to call upon the makers of the staining machine. By them a skilled manmay be sent, who seeks a machine-shop, if necessary, and performs the truing operation. Experience shows that the expense ofthis procedure may in some instances approach $100. j

An object of the present invention is to provide an arrangement whereby, if the stain-controlling member comes in contact with the feeding means and its end is thereby worn out of true, the defect may be corrected without removing the controlling member from the machine; without the exercise-of skill on the part of the operator; and even without theknowledge of the operator of how the change is being effected, This object I accomplish by the, association. of such elements that theone causing the departure" from the normal conditions brings about their restoration during an adjustment which may be a continuation of or similar to th at causing the trouble.

A particular application of the invention is illustrated in the accompanying drawing,

' trating the action of the disk upon the face.

ing disk somewhat beyond its edge. member 30 is of some material substantially stripping member to cause such wear; and Fig. 5, a similar View, in which appears the relation of the parts during the correction for wear.

The staining apparatus disclosed is that of the type known in the art as the Crest heel blacking machine model B, and, as far as its general structure is concerned, is as shown and described in the patent previously referred to. The more essential elements appear as supported upon a column 10 above a staining receptacle 12, and consisting' of a rotatable rand-engaging member 14 having an edge 16 arranged to enter the crease of a shoe and guide it, while also applying stain to the rand; a rotatable member 18 running in the stain contained in the receptacle 12 and having a feeding surface 20 :upon one face delivering the elevated stain to the crease member; and a rotatable brush 22 receiving stain from the member 14 and spreading it upon the curved side wall of the heel.

Threaded through the frame of the machine, with its axis alined with andat right angles to the feeding surface 20, is a metal rod 24 furnishing a portion of a sta1n-controlling member and having a hand-wheel 26 fixed upon its outer end, by which it may be turned to advance its inner extremity toward or withdraw it from the feeding sur- At this inner end of the rod is a bore or recess 28, preferably concentric with the axis, to receive the active controlling element. This consists of aplug or cylindrical member 30 fitting tightly within the recess, so that it is held against displacement therefrom, and presenting to the feeding surface 20 a plane face parallel to said surface and extending radially of the feed- The softer than the disk, which is usually of cast iron. I prefer to employ for this purpose a fine-grained wood, as maple. For the reasons which have already beenindicated, the controlling member 30 may, in the use of the machine, become worn opposite the disk at 32. This results in the formation of a projection 34 where the member overhangs the edge of the disk; see Fig. 4 of the drawings. As the use of the machine proceeds, the space between the controlling member and disk at 32 may grow too great, so that an excessive amount of stain is supplied to the applying members. Then when the op erator turns the rod 24 in a clockwise direction to advance the end and reduce the space, the projection 34 will come opposite the disk (Fig. 5). This revolution of the portion 34 is permitted, in spite of the exface 20, which now bears against it, the

rotation of this disk will at once begin to wear away the comparatively slender portion. The rapidity of this action is increased, because the operator now finds that there is still too much stain being fed as a result of the holding away of the major controlling surface 32 from the feeding surface by the projection 34. Consequently, as he continues to turn the rod, the portion 34 is reduced until it is brought to the plane of the surface 32. Now the operator discovers that the feeding surface is being stripped clean, and that he is getting too little stain, and turns the rod 24 anti-clockwise. As the controlling surfaceof the member 30 is now true, a satisfactory adjustmentby movement in this direction may promptly be obtained.

The entire operation, it should be observed, is accomplished rapidly and without skill or the exercise of judgment on the part of the operator, beyond that necessary to determine the amount of stain which he wishes to feed. The adjustment having been made, it will be maintained until disturbed by some of the extraordinary circumstances of maladjustment or machine-defects, since otherwise there is between the parts no wearing contact.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a shoe-bottom-staining machine, an applying member, feeding means including a rotatable disk, and a feed-controlling member having a portion of wood co-operating with the feeding surface of the disk and extending beyond the periphery thereof.

2. In a shoe-bottom-staining machine, an applying member, a metalv feeding member therefor, and a wooden stripper co-operating with the feeding member.

3. In a shoe-bottom-staining machine, a stain-applying member, a rotatable feeding member therefor having a stain-carrying surface at its edge-portion, a stripper mounted to turn about an axis extending substantially at right angles to the carryin surface, co-operating at its extremity with said surfaceand projecting beyond the edge of the feeding member, such co-operating portion being of material softer than the feeding member, and means arranged to permit the stripping surface to be advanced toward the feeding member.

4. In a shoe-bottom-staining machine, a stain-applying member, a rotatable feeding member therefor having a metal stain-carrying surface at its edge-portion, a screw mounted for adjustment by its rotation to- Ward and from the carrying surface, and a Wooden plug mounted in the end of the screw, co-operating With the carrying sur-' face and projecting beyond the edge thereof. In testimony whereof I have signed my name to this specification.

AMOS S. HAYDEN. 

